BioMedical Admissions Test (BMAT) Practice Test 2026 - Free BMAT Practice Questions and Study Guide

In a flame test, calcium ions produce a characteristic color that is best identified as red. This red color is a result of the excitation of electrons in the calcium atoms when they are heated in the flame. When the excited electrons return to their ground state, they release energy in the form of visible light, primarily in the wavelength range that appears red to the human eye.

This specific color is important in qualitative analysis for identifying the presence of calcium ions in a sample. The flame test is a convenient and quick method to distinguish calcium from other elements, as each metal ion produces a distinct color due to their unique electron configurations and energy transitions.

In contrast, other colors such as crimson, yellow, or green are associated with different metal ions. For instance, lithium typically produces a crimson flame, sodium emits a bright yellow, and copper can show green or blue flames. Understanding these colors and their association with specific ions is crucial in the identification of elements through the flame test.